@Graeme *********
, I agree with
@Stuart ********
, it seems there's no requirement to renew covid cover once you're in Thailand because it's currently not a condition of the OA visa extension. You'll need the covid cover only for your CoE. But, something off topic for you to consider. When you get back to Australia, you will need Australian Border Force approval to depart the country. Although you normally reside in Thailand, they're particularly tough at the moment. They've been rejecting people that have wives, businesses, property, etc, in Thailand. And then there's the current arrival caps. I'm sure you'll have no difficulty, but thought it worth flagging these issues.